Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Siemens BQD190 Molded Case Circuit Breaker
- 90A
- 1 Pole
- Bolt-On
Siemens
BQD190
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQD190
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens BQD190 - 90A 1 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
70A 1 Pole Molded Case Circuit Breaker
60A 1 Pole Molded Case Circuit Breaker
50A 1 Pole Molded Case Circuit Breaker
Description
Operating within the 100A BQD frame group, the Siemens BQD190 is a 90A, 1-pole molded case circuit breaker optimized for commercial systems. This unit mounts via a sturdy bolt-on connection, making it an exact fit for Siemens P1 through P5 panelboards. It accommodates up to 1/0 AWG wire. The breaker delivers a 14kAIC interrupt rating at 277VAC (65kAIC at 120VAC) and carries a HACR rating for HVAC equipment applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQD190 |
| Series | BQD |
| Amperage | 90A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 14kA @ 277VAC, 14kA @ 125VDC |
| Frame Type | BQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-1 AWG (Cu), 6-1/0 AWG (Al) |
| Max Wire | 1 AWG (Cu), 1/0 AWG (Al) |
| Min Wire | 8 AWG (Cu), 6 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
7 answersWhat panelboards are compatible with the Siemens BQD190 circuit breaker?
The BQD190 is designed for use in Siemens Sentron series panelboards, specifically the P1, P2, P3, P4, and P5 models. Depending on the specific panelboard, additional mounting hardware such as the SBL kit for P4 panels may be required for installation.
Is the Siemens BQD190 suitable for reverse feed applications?
Yes, Siemens BQD series circuit breakers, including the 90A BQD190, are UL Listed for reverse feed applications.
Can the BQD190 be used in DC voltage systems?
Yes, this 1-pole breaker is rated for up to 125VDC with an interrupting capacity of 14kA. This makes it suitable for direct current applications such as control circuits or battery systems.
What is the difference between Siemens BQD and CQD circuit breakers?
While both share the same internal mechanisms and 1-inch pole width, the BQD series is designed to bolt onto the busbars of Siemens panelboards. The CQD series is designed to be independently mounted on a standard DIN rail or bolted directly to a surface.
Is the BQD190 breaker HACR rated?
Yes, all Siemens BQD circuit breakers from 15A to 100A, including the BQD190, carry a Heating, Air Conditioning, and Refrigeration (HACR) rating.
Does the BQD190 carry SWD or HID ratings?
No. While the BQD190 is HACR rated, Switching Duty (SWD) ratings only apply to 15A and 20A BQD breakers, and High Intensity Discharge (HID) ratings are limited to 15A through 50A models.
Can shunt trips or auxiliary switches be added to the BQD190?
No. While shunt trips, auxiliary switches, and alarm switches are available for the BQD frame, these add-on modules mount to the left side of the breaker and are not compatible with single-pole breakers like the BQD190.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 61 reviews.
Reviews Summary
Generated by AI from 47 most recent customer reviews
Last updated 8/15/25
Customers say this electrical supply service delivers breakers with exceptional speed and reliability. Many reviews mention the straightforward ordering process through an easy-to-navigate website. Frequent comments address competitive pricing and accurate product delivery. The selection of breakers receives consistent praise, with users noting the products match specifications precisely. Reviews highlight the availability of inventory and prompt shipping, often exceeding delivery expectations.
Search
Rating
61 reviews
- PCPACIFIC C. B.Verified BuyerReviewingSiemens BQD380 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/26Used breaker in like New state
Order a reconditioned breaker to fulfill an order, it was in excellent condition . Price was just right.
Very satisfied with my purchase and the end user was happy as well.
- BCBubba C.Verified BuyerReviewingSiemens BQD390 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/24/26BQD breakers
Always love working with Superbreakers! Excellent pricing and availability on pretty much any sort of breaker you need. The packaging is always top notch and they ship your order out as soon as you purchase. Love working with the Superbreakers team!
- LPLUCIAN P.Verified BuyerReviewingSiemens BQD2100 - 100A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/21/26Super breakers
Very good prices , well stock inventory.
Looking forward for more business opportunities.
I like the knowledge that the company employs
professionals and people who are willing to help and support.
- RGRon G.Verified BuyerReviewingSiemens BQD320 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/2/26Breakers
Order was shipped and on time. The ordering process was easy and the service was great.
- GNGreg N.Verified BuyerReviewingSiemens BQD340 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/26/26Excellent Customer Service
Easy ordering & Drew Wilson helped me with this order. I will definitely be using you again in the near future especially with his excellent service he provided.